to fix it. Their update a couple days back is apparently not playing nice with software version 6.1 build 5605 on multiple units, and it sounds like most of the units are some iteration of Roku2 or their stream stick.
http://www.forums.mlb.com/discussions/MLBTV_Support_Forum/Archived_Games/Games_not_Streaming_on_Roku/ml-help01/28171.1?mobile=y
Lotta steamed baseball watchers on that forum.
I'm sure they'll get their people on it in the next few days. Only reason I care during spring training, because I don't mind pulling it up on my phone, is that it's nice to have on in the background, and I want to be using my phone for other things more actively, like CB.